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Author Ali, M.T. ♦ Mian, M.S.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2006
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Audio coding ♦ Codecs ♦ Bit rate ♦ Decoding ♦ Bandwidth ♦ Digital audio broadcasting ♦ Testing ♦ Switches ♦ Humans ♦ Ear
Abstract A novel technique of phase randomization (PR) for bit rate reduction in perceptual coding of high quality audio is presented. Instead of actual phase information, the decoder utilizes nevertheless-carefully-formulated 'random' phase information for signal reconstruction with the help of a code sent by the encoder in every frame of data. The coding scheme is tested on the digital audio broadcasting (DAB) standard, for which broadcasters often desire an increase in the number of transmission channels for densely populated areas. The codec achieves the aim of providing good quality audio at a reduced bit rate assessed with the help of lTU-R BS.1116 methodology for the subjective assessment of audio quality
Description Author affiliation: Dept. of Electr. Eng., Univ. of Eng. & Technol., Lahore (Ali, M.T.; Mian, M.S.)
ISBN 1424405483
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2006-11-14
Publisher Place China
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 75.30 kB
Page Count 4
Starting Page 1
Ending Page 4


Source: IEEE Xplore Digital Library